Good fixes in this release but notthing urgent.
- @mc-hamster improved store and forware plugin
- @IZ1IVA pointed out that we weren't storing altitudes in the node db
- @IZ1IVA fixed python tool usage in our install scripts
- @mc-hamster added a reboot counter to MyNodeInfo
- move streamapi into a thread - which fixes loss of comms for the command line tool (or anything talking over USB)
- phoneapi now cleanly shuts down bluetooth while talking USB
- add last_heard to nodedb records, to track the last time we heard from this node (as distinct from position.time)
- add a reboot message to adminproto